Gas-producer.



E. A. W. JEFFERiES.

GAS momma.

APPLICATION FLE AUG-G @913. @@QV aeneep. l2, 1916.

4 sHEETs-sHET 1.

A. w. IEFFEHLES.

GAS PRODUCER. APPLICATiON FILED A UG.6,193

Fatente Sept. 12, 1916.

4 SHEETS-SHEET 2.

E. A. W. IFFERES.

GAS PRODUCER.

APPLICAUON FILED Ams. i913.

Mmmm@ Sept. l2, w16.

0. SHEETS--SHEET 3.

.E. A. W. JEFFEREES.

GAS PRODUCER.

APPLICATION FILED AUG.6.1913.

Patented Sept. 12, 1916.

meme.

4 SHEETS-#SHEET 4.

EBENEZER A. W. JEFFERIES, OF WORCESTER, MASSACHUSETTS, ASSIGNOR 'IOMORGAN CONSTRUCTION COMPANY, OF WORCESTER, MASSACHUSETTS, CORPORATION 0FMASSACHUSETTS.

GAS-PRODUCER.

specification of Leners rarest. tramuta@ glpg 1g, 19313;

Application filed. ugust, 1913. Serial No. 7.83320.

To all whom t may concern:

Be it known that l'., Ennivnznn A, W. JEF- rnnins, a citizen of theUnited States, residing at lVoicester, in the county of `Worces ter andCnnmonwealthv,v `of Massachusetts, have invented a new and usefulImprovevment in Gas-Producers of which the' following, together with theaccompanying drawings, is a specification.

2.5. ing

My present invention relates tothat class of gas producers whichcomprise a rotatable support for the .ashes spaced beneath the bodyportion of the gas producer, said ash support having a radial arm orscraper resting upon the bottom of the ash support and Journaledconcentrcally with said ash support, with means for holding said radialarm stationary while the ash support revolves beneath it, therebycausing the ashes to be crowded outwardly and delivered from the edge ofthe ash support. I

The objects of my present invention are to provide means for engagingthe outer end` of the radial arm or lscraper and for automaticallyreleasing said scraper, allowit to 'rotate with the ash'support and l,thereby interrupt Athe discharge of ashes plan view of the lash supportand scraper with mechanism for automatically releasing the latter. Fig.3 is a Vertical sectional view of a portion of the gas producer, showinga side view ofthe apparatus for automatically releasing the ash scraper.Fig. 4 is a detail4 view of the latching mechanism forl'atop-T ping therotation of the ash scraper. Figs. 5 and .6 are detached views of themechanism for Aautomatically releasing the ash scraper,`

and Fig. 7 shows a modification of the autog matic scraper releasingmechanism.

Similar reference characters refer to si'r'ni.;`

lar parts in thedifferent figures. Referring to Figs. 1 `and 3 of ings,l denotes the body portion of a gas producer inclosing a gas producingchamber anddspaced above a rotatable ash support 2 consisting, in thepresent instance, of a shallow pan into which the ashes are deliveredfrom the body portion of the producer through its open bottom.' The ashsupport 2 is mounted upon rollers 3, 3 and is rotated by a rotatingpinion 4 engaging an annular rack 5 upon the ash support.4concentrically with the rotating ash supportf 2 1s an ash scraper 6,resting upon the bottom of the ash support and consisting, in thepresent instance, of a helical shaped arm having its outer or free end 7arranged to be engaged by a latch 8 lpivoted at 9 upon the lower end .ofan arm 10 rigidlyattached to the fixed walls of the gas producer and eX-tending downwardly toward the ash support. By reason of itsfrictionalengagement with the bottom of the ash support, the scraper r6,when not engaged by the latch 8, rotates with said ash support. Theupper end of the latch 8 is connected by a link 11 with a short arm 12carried upon the in- Journaled ner end -of a rocking lshaft 13. Attachedto the outer end of the` rocking shaft 13 is a lever 14' supporting uponitsfree end an adjustable counterweight 15. The lever'14 is connected bya link 16 withA one end of a lever 17 turning loosely upon a shaft 18supported in brackets 19 upon the top wall of the gas producer.Journaled upon the shaft y 18 is' a lever 20 carrying upon one end anadjustable counterweight21., which is normally supported uponv a stop orrest -22 by which the lever 20 is maintained in a horizontal position.The opposite` end ofthe lever 20 is pivotally connected by a link 23'with a radial arm 24 attached to one end the rocking shaft 25 carriesai radial arm 26 in the free end of which is a cam roll v27. Attached tothe outer wall of the ash supof a rocking shaft 25. The opposite end-ofport 2 is a cam 28, said cam roll 27 being arranged in the path of thecam 28 as the latter is carried around by the rotatable. ash

support 2. Extending upwardly from the rockinglever 20 is a short arm29, upon the weight 31 and .provided with an Vvarm 32 which carriesthereon an adjustable counter weight 33. The lever 17 is provided witha' notch 3 4 adapted to. receive the end. 35 of lthe pawl 30 as shown inFig. 6,- upon the op- .eratlon of the. mechanism in the mannerhereinafter described.

, With the lever y14 in the position shown in Fig. 5, the latch 8 isdisposed so as toy bring its' lower end 36 into the 'path of the Yscraper 6, and it will be understood, that if said latch be so held, theadvancing end 7 of the scraper will be engaged thereby,'caus ing saidscraper to be held from rotation.

The continued rotation of the-ash support,

withv the scraper thus held from rotation carries the mass of ashesagainstthe helical lside of the scraper, causing such ashes to be pushedoutwardly and crowded over the Haring-side ofthe pan.

tation of the scraper 6 with the ash support and consequently interruptsthe discharge of liashes from said support. The several movements oflatch 8 are controlled by the cam 28 inthe following manner: The cam 28as it is carried around by the rotating ash support will ride over thecamroll 27, depressing the arm 26 and rocking theshaft 25. 'The rockingof the shaft 25 through' the radial arm 24 and link 23 will rock thelever 2 0 on the shaft 18 from the position shown in Fig.' 1- to thatrepresented in Fig. 5, wherebythe pawl 30, which it will be as-`gsulned, has been caused to occupy the position shownin Fig. `1, willtip' over tothe right, with its end resting against theextreme end ofthe lever 17, beyond vthe notch 3 4 of the latter, as shown in said Fig.5. When the cam "284 passesA the cam roll 27 the counterweight willreverse the motion of the lever 20, restoring it .to the positionshownin Fig. 1,.allowing the end 35 ofthe pawl 30 to engage the notch 34in the l lever 17. In this position of the pawl 30,

- the next .passage of the cam 28 lover the cam roll 27 will again rockthe shaft 25, de-' p'essing'the arm V24 and againrockingthe lever 20through "the link 23 into the position shown in Fig. 6. At this rockingmove- .ment of the lever 20, however, the engage- Inent of the pawl 30-with the lever 17 will lift the lever 14 through the-link 16, therebyrocking the shaft 13 and, through the radial arm 12 and-link 11, rockingtheglatch 8 into 56 the position 4shownin Fig. 6.. The, lifting o`f thelatch 8. into this position .permits the passage thereunder ofthescraper, provided `said scraper is in radial alinement with the cam andarrives adjacent the latch when the 0 latter is in raised position. Ifsuch is not the case, as happens .when the device is first put intoaction, the subsequent arrival of the scraper finds the latch depressed,owing to the movement of the cam 28 past the roll 27. The depressedlatch holdsthe scraper The subsequent movement of latch 8 int'-.- 1 theposition shown in Fig. 6 permits the rostationary until the cam 28 againengages the roll 27, moving the latch into the position shown in Fig. 6and permitting rotation of the scraper. Thereafter the cam and scraperrotate together, the latch 8 being 70 raised at each revolution topermit the -passage of the scraper thereunder. When it is desired tomake the scrapereilective again to discharge ashes from thc support, theop' erator rocks the pawl 30 toward the left, 7'5 from the positionshown in Fig. 6 to that shown in Fig. 1. When the cam 28 again comesinto contact with roller 27,.the lever; 2O is moved downward as shown inFigli), without carrying with it the lever 17, there- Q. '80 by leavingthe latch 8 in position to arrest the rotation of the scraper. .Duringthe following rotation of the'ash support, ashes are thereforedischarged, unless there arises a force tending to move the scraper,sufficient 35 to raise the counterweight' 15, the 'latter be ing madeheavy enough to hold the scraper vfirmly to its work.- Should such aforce.

arise, due to the jamming of a mass ofn clinker between the scraper andthe wall of the support, or to any other cause, the latch is forcedupwardly against the action of the counterweight and-the scrapercontinues to rotate until the force is removed. When the cam again comesinto contact with then roller 27, the pawl 30 has assumed the positionshown in Fig. 6, and the release of the scraper is eilected. Theinterruption to the discharge of ashes continues until theoper-` ator`again rocks the pawl 30 to the'leftl 1 00 when the above describedoperation.4 is re#` peated. It will be 'obvious that mre than one cammay be used, so that the interruption to the discharge of ashes, whichby the4 above described apparatus is automatically effected after onerevolution of the support,

. may be effected at shorter intervals.

Ain pivoting uponthe shaft 18 a lever 37 hav- 115 I ing a series ofnotches 38 in one end, in the present instance three in number, andhaving its opposite end provided with a pin 39 which extends through aslot 40 formed in the link 16. apable of sliding in the slot 120 ,40 isa block'41`,the .position of which may be adjusted in the slot'40 bymeans of a screw 42. The lever 37 is provided 'with a split bearingwhich incloses thesh'aft 18.

This bearing is provided with a bolt 43 by 125 which the lever 3 7 Vmaybe vclamped upon the shaft 18 to produce a slight frictio'suiiicient toprevent it from being rocked upon theshaft 18 by its own weight. Byadusting theblock 4l in the slot 40, the link 16 13 ineens? and lever lamay be lifted by the engagement of one or more of the ntches 38, causingone, two or three revolutions of the ash support to take place beforethe release of the scraper 6 occurs.

l claim, y

l.. In a gas producer, a rotating ash support, a scraper capable ofrotation with said support, means for checking therotation et saidscraper at will, and means actuated by the rotation ot said support forreleasing said scraper from said checking means.

2. ln a gas producer, a rotating ash support, a scraper capable ofrotation with said support, means for interposing a stop in the path ofsaid scraper to prevent its rotation with said support, and automaticmeans for withdrawing said stop 'from the path of said scraper.

3. ln a gas producer;` a rotating ash support, a scraper resting on thebottom oi said ash support, means for holding said scraper stationaryduring rotation of said. ash support, and meansactuated by the rotationof said ash support 'for rendering said holding means inoperative.`

4. lin a gas producer, a rotating ash sup port, means for crowding theashes'toward the edge of said support, and automatic means forinterrupting the action oi said crowding means. n

5. ln a gas producer, a rotatable .ashesupport, a scraper journaled atone end, means for holding its opposite' end from rotating with the ashsupport. and means carried by automatically withdrawing said latch fromthe path. of the scraper as theash support is rotated; f

l0. in a gas producer,'a rotatable ashsupl port, a scraper above thebottom of the ash support and capable of rotating with the ash support,means -for holding the scraper'- said latch in engagement with thescraper.

l2. ln agas producer, a rotatable ash support, a scraper for crowdingthe ashes toward the outeredge of theash support,

' means for holding the scraper from rotating with the ash support, andmeans for automatically releasing the scraper by one or.-v

more revolutions of the ash support. l

13. ln a gas producer, a' rotatable -ash support, a scraper journaled atits inner end, a pivoted latch for holding its outer end from rotatingwith the ash support, yielding means for holding said latch inengagement with the scraper, mechanism for withdrawing said latch andlreleasing the scraper, and a cam carried by the ash support foractuating said. latch withdrawing mechanism.

14. ln agas 'producen a rotating ash the rotatable ash supportorreleasing saidvsupport, a scraper capable of rotation with scraper.

.ash support, and means for automatically releasing the scraper. fromits holding means, comprising a cam carried by the roe tgting ashsupport.

'7. ln. a gas producer,an ash support,

Ineansl .for 'crowding the ashes toward the outer-edge ofthe ashsupport, and meansor'automatically interrupting the action of saidcrowding means.

8. ln a gas producer, an` ash support, means for rotating the ashsupport, means .located above the bottom of the rotatable ash ysupportfor moving the ashes toward the outer edgeof the ash support, and meansfor automatically interrupting the action of 'said ash removing meansbythe rotation. of

the ash support. 9. ln a gas producer, a 'rotatable ash support, ascraper journaled concentrically with l the ash support, a latchpivotally supported `by the fixed portion of the gas producer,

I neans for rocking said latch to interpose it 1n the path of thescrapenand means tor matic means iforowithdrawing said latchrom said`path during a predetermined period in the rotation of said scraper, andmanually operated means for rendering said withdrawing meansinoperative.

,16. In a gas producer, a' rotating ash support, a scraper adapted tocoact with said support to efi'ect the discharge of ashes therefrom, andautomatic means `for inter-V rupting the action oi said scraper.

17.111 av gas producer, a xrotating ash support, a scraper, means forholding said scraper stationary with respect to said support, andautomatic means for releasing said scraper.

18.y ln a gas producer, a rotating ash support, a scraper bar,journaledA concentrically therewith and carriedin the botieutomi-thereof, a latch depending in the path" of said' scraper bar, andautomatic means, actuatedyby the rotation of said-ash support,for'engaging and disengaging said "5 latch, Whereloy to intermittentlypermit the rotation of said scraper bar with said ash support.

. 19.' In a gas producer, a rotating ash support,lascraper bar carriedthereby, and

,in in frictional engagement therewith, a latch normally held in thepath ofisgi'id scraper bar, and'automatic means orintermittentlyreleasing ,said latch, vwhereby the scraper bar is permitted to rotate`with the ash sup- 15 port.

20.- In a gas producer, a rotatingash support, an ash discharging'meanscopertionary with respect to said support, to effeet the discharge ofashes therefrom, and means for holding said membcrlstationary, saidmeans adapted to be rendered inoperative when the force tending torotate said member overcomes the force` ofl gravity acting on saidmeans. y

Dated this 31st day of J u1y,.1913. EBENEZER A.`W. J EFFERIE-S.Witnesses:

PENELOPE CoMBnRnAoH, NELLm WHALEN.

